I used to deskew in Adobe Acrobat XI whenever I OCR'ed a document. The deskewing worked so well: every page would be rotated a tiny amount and usually the improvement was noticeable. In Adobe Acrobat DC (on macOS 10.15.7), the "Recognize Text" function no longer performs deskewing. So I OCR and deskew using the "Enhance" function under Scan & OCR. Although the Deskew feature is turned on in Filters under Settings, when I run Enhance, it doesn't actually deskew. (And worse, unless I change the default image quality to High Quality, the image is degraded.) I thought maybe my documents were all 100% aligned. But then I ran into a document that clearly needed deskewing and nothing happened when I deskewed.
I don't want to sound harsh, but I feel that from one version to the next, Adobe has managed to make routine tasks less convenient to perform.